<!DOCTYPE html>
<html class="ui-page-login">

	<head>
		 

	</head>

 
	<body>
	   <script type="text/javascript">
	   	   let s1 = Symbol('foo');
	   	   let s2 =Symbol('bar');
	   	   console.log(s1.toString());
	   	   console.log(s2.toString());
	   	   console.log(Symbol);
	   	   

	   </script>

	</body>

</html>